Merge pull request #80 from nikicat/master

fmod_git: log command additionally to command output
Moved rules-base to head_version
Merge pull request #81 from mdevaev/rules-base-refactor

Moved rules-base to head_version
Small refactoring
Fixed gns.plugins behavior
Removed copypaste from gns.cli
fmod_git: added submodules support
Merge pull request #82 from mdevaev/git-fetcher-submodules

Git fetcher now supports submodules
maestro: SMS_URL renamed to YA_SMS_URL, ship addresses moved to env
maestro/test.yaml: removed gns-reinit
removed main() from modules
removed excessive run-tests.sh
Dockerfile: use nikicat/ubuntu-pypy3 as base
tests: init logging in setUp
maestro: ship addresses and image names moved to env files